United Plugins FireSpacer is a spatial processing plugin designed to simplify the complex task of creating space in a mix. It operates by analyzing the frequency content of one audio channel via a side-chain and applying an intelligent filter to subtract those frequencies from another track. This real-time process ensures that each instrument or voice has its own space in the mix, preventing clutter and enhancing clarity. FireSpacer offers four distinct processing modes, each with its own sonic characteristics, catering to various mixing scenarios. The plugin features a user-friendly interface with advanced tweaking options, allowing both seasoned producers and newcomers to achieve professional-quality results efficiently. FireSpacer’s versatility makes it suitable for blending vocals, instruments, and other audio elements, giving users control over the priority of each track in the mix. The plugin supports 64-bit audio processing at any sampling rate, ensuring maximum audio quality.
Pros:
• Intuitive interface with a realistic 3D yet flexible GUI
• Four distinct processing modes for various mixing scenarios
• Advanced tweaking options for precise control over spatial processing
• Intelligent sleep mode to conserve CPU resources when not in use
• Smart bypass feature to prevent clicks and compensate for latency
Cons:
• Spectral algorithms may introduce latency and require more CPU power
• Compatibility issues with applications that don’t support side-chain routing (e.g., GarageBand)
FireSpacer’s feature set is comprehensive and tailored to address common mixing challenges. The plugin’s core functionality revolves around its ability to create space in a mix by intelligently processing audio signals. The Amount control determines how much the plugin removes colliding frequencies from the main input, with 50% typically serving as a good starting point. Users can choose from four processing modes, each offering a unique approach to spatial processing. Spectral algorithms provide higher accuracy but introduce latency, while no-latency algorithms use minimum phase filters for broader effects at the cost of precision.
The plugin offers fine-tuned control over the frequency range affected by the processing. The Min Frequency and Max Frequency controls allow users to limit the spectrum range being processed, which is particularly useful when dealing with specific instruments or frequency collisions. For instance, when addressing conflicts between bass and kick drum, users can adjust these parameters to preserve essential elements of each sound while creating separation.
FireSpacer’s Release control determines how quickly attenuated frequencies increase in level when they stop colliding, offering a balance between transparency and effectiveness. The Precision parameter, available in spectral modes, allows users to adjust how precisely the plugin targets colliding frequencies, with maximum accuracy removing only nearly identical frequencies for optimal transparency.
The plugin also features a Mid/Side mode, enabling users to process the stereo field more precisely. Gain controls for input, side-chain, and output provide additional flexibility in signal management. The Side-chain Listen function allows users to audition the side-chain signal, ensuring proper routing.
FireSpacer’s analyzer display provides real-time visual feedback of the audio signals, with color-coded curves representing the input, output, and side-chain signals. This visual representation aids in understanding and fine-tuning the plugin’s effect on the mix.
The plugin’s interface includes standard workflow-enhancing controls such as A/B comparison, preset management, undo/redo functionality, and a bypass button. The right-click menu offers additional features like GUI scaling, version information, and access to support resources.
When compared to similar plugins like TrackSpacer, Pure:Unmask, FAST Reveal, and Fuser, FireSpacer stands out with its combination of ease of use and advanced features. While all these plugins aim to address frequency masking and create space in a mix, FireSpacer’s four processing modes offer more flexibility than some competitors. Its spectral algorithms provide a level of precision that may surpass simpler dynamic EQ-based solutions. However, FireSpacer’s approach to CPU management through its intelligent sleep mode and its ability to work at high sampling rates may give it an edge in certain production environments. The plugin’s realistic 3D GUI also sets it apart visually, potentially enhancing user experience and workflow.
This plugin is best for:
• Mix engineers seeking to quickly resolve frequency masking issues
• Producers working with dense arrangements requiring clear separation between elements
• Novice users looking for an intuitive tool to improve mix clarity
• Professional studios requiring high-quality processing at any sampling rate
• Projects involving complex vocal layering or instrument blending
FireSpacer by United Plugins offers a powerful solution for creating space and clarity in mixes. Its combination of intuitive operation and advanced features makes it suitable for both beginners and experienced producers. The plugin’s four processing modes provide flexibility for various mixing scenarios, while its precise controls allow for fine-tuned adjustments. The realistic 3D interface enhances user experience, and the intelligent CPU management ensures efficient performance. While the spectral algorithms may introduce some latency, the trade-off is often worth it for the increased accuracy in frequency processing. FireSpacer’s ability to work at high sampling rates and its smart bypass feature demonstrate a commitment to audio quality and usability. Despite potential compatibility issues with certain DAWs, FireSpacer stands as a valuable tool for addressing frequency masking and enhancing mix separation. Its versatility in handling various audio elements, from vocals to instruments, makes it a worthy addition to any mixing toolkit.